发明名称 |
JIG FOR MEASURING LASER POWER OF OPTICAL DISK DEVICE |
摘要 |
PURPOSE:To enable measurement to be made with an improved working efficiency and accurately by the use of a measuring jig for laser power of an optical disk device. CONSTITUTION:The body of a jig 11 has virtually the same shape as that of a case where an optical disk is housed. A filter 25 and a photoelectric conversion element 20 are provided within the body of the jig 11. A laser 45 which is emitted from an optical head 6 passes through the filter 25 and is attenuated and then irradiates a photoelectric conversion element 20 with an illumination within a proportional operation region. |
申请公布号 |
JPH04221441(A) |
申请公布日期 |
1992.08.11 |
申请号 |
JP19900405627 |
申请日期 |
1990.12.25 |
申请人 |
MITSUBISHI ELECTRIC CORP;TEAC CORP |
发明人 |
NAKANE KAZUHIKO;SHIMAMOTO MASAMI;KIYOSE YASUHIRO;NAKATSU KEIJI;WATANABE SEIO;HOTSUTA SUKEMI;SATO KENICHI;SHIMOZAWA KENJI;KONUMA HIROSHI;YOSHIMURA SHINJI |
分类号 |
G01J1/02;G11B7/125;G11B7/22 |
主分类号 |
G01J1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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